94 Grand Prix SE
130,000 miles

When I start the car - I get a strange sound coming from the ds trunk area. It sounds like a metal vibration in the tailpipe/exhaust. Any ideas?

broken or loose muffler bracket. split muffler.

Here's a dumb question.....sorry.....but have you checked to make sure your jack and spare aren't rattling around loose?

Here's a dumb question.....sorry.....but have you checked to make sure your jack and spare aren't rattling around loose?
The weird thing is the sound is only heard on start-up and stops after driving. I noticed that it also seems to be leaking water... Any ideas? and yes, the tire/jack is secure.

The weird thing is the sound is only heard on start-up and stops after driving. I noticed that it also seems to be leaking water... Any ideas? and yes, the tire/jack is secure.


Where is it leaking from?

The muffler - front seam

The muffler - front seam
might have a broken baffle inside the muffler and the muffler might have a hole in it.

i think its the cat. it is probley rusted and needs to be replased. at certin rpm's it will make it shake.

I appreciate everyone taking the time to give feedback. I have traded in my beloved grand prix for a 2005 Grand Am GT1.

Thank you.....